MvvmCross / MvvmCross-AndroidSupport

Android support library packages for MvvmCross: The .NET MVVM framework for cross-platform solutions.
http://mvvmcross.com
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MvxPreferenceFragmentCompat inconsistent crashing #312

Open woody1987 opened 8 years ago

woody1987 commented 8 years ago

Steps to reproduce

  1. Create a MvxPreferenceFragmentCompat, without using a custom layout.

Expected behavior

Should display preferences

Actual behavior

Display preferences the first couple of times, then will seemingly at random through an error

ERROR : UNHANDLED : Java.Lang.RuntimeException: Content has view with id attribute 'R.id.list_container' that is not a ViewGroup class at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in <234a083d9eb54b4982c0c529c70a7497>:0 at Java.Interop.JniEnvironment+InstanceMethods.CallNonvirtualObjectMethod (Java.Interop.JniObjectReference instance, Java.Interop.JniObjectReference type, Java.Interop.JniMethodInfo method, Java.Interop.JniArgumentValue* args) [0x000a8] in <1acc3b4387144f52bf5acc1663c645b1>:0 at Android.Runtime.JNIEnv.CallNonvirtualObjectMethod (System.IntPtr jobject, System.IntPtr jclass, System.IntPtr jmethod, Android.Runtime.JValue* parms) [0x00015] in <c306cfd08ef940588fcd9c545f29d86b>:0 at Android.Support.V4.App.Fragment.OnCreateView (Android.Views.LayoutInflater inflater, Android.Views.ViewGroup container, Android.OS.Bundle savedInstanceState) [0x000c0] in <013f8eacb1954462a2f9d5f677673fee>:0 at MvvmCross.Droid.Support.V7.Preference.MvxEventSourcePreferenceFragmentCompat.OnCreateView (Android.Views.LayoutInflater inflater, Android.Views.ViewGroup container, Android.OS.Bundle savedInstanceState) [0x00014] in <45009b09ade2492080dee1e0295253f4>:0

My class:

[Register("xxxx.views.fragments.SettingsFragment")]
public class SettingsFragment : MvxPreferenceFragmentCompat
{
    public new SettingsViewModel ViewModel
    {
        get { return (SettingsViewModel)base.ViewModel; }
        set { base.ViewModel = value; }
    }

    public override void OnCreate(Bundle savedInstanceState)
    {
        base.OnCreate(savedInstanceState);
        HasOptionsMenu = true;
    }

    public override void OnResume()
    {
        base.OnResume();
    }

    public override View OnCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
    {
        var view = base.OnCreateView(inflater, container, savedInstanceState);

        //setting up bindings

        return view;
    }

    public override void OnCreatePreferences(Bundle savedInstanceState, string rootKey)
    {
        AddPreferencesFromResource(Resource.Xml.preferences);
    }

    public override void OnCreateOptionsMenu(IMenu menu, MenuInflater inflater)
    {
        inflater.Inflate(Resource.Menu.settings_menu, menu);
        base.OnCreateOptionsMenu(menu, inflater);
    }

    public override void OnPrepareOptionsMenu(IMenu menu)
    {
        for (int i = 0; i < menu.Size(); i++)
            menu.GetItem(i).SetShowAsAction(ShowAsAction.Always | ShowAsAction.WithText);

        base.OnPrepareOptionsMenu(menu);
    }

    public override bool OnOptionsItemSelected(IMenuItem item)
    {
        switch (item.ItemId)
        {
            case Resource.Id.action_help:
                Help.ShowHelp(Activity, "Help/Settings_Help.htm");
                return true;
        }

        return base.OnOptionsItemSelected(item);
    }
}

Configuration

Version: 4.3.0 Happens on Android 4+

Cheesebaron commented 8 years ago

Not sure what is going on here. We don't inflate any layouts ourselves or manipulate any views. This is just a simple wrapper around PreferenceFragmentCompat which exposes a couple of events.